Sorry, for not being clear about this. I didn't find any settings about that in the Gaia configuration. I just know that is the default setting of the OSPF protocol.
With that in place (not changing that setting - aka, keeping it to the default) you are essentially telling OSPF "100 Mbps, 1 Gbps, 10 Gbps, 25 Gbps, 40 Gbps, 100Gbps, and etc links... have the same exact cost. If you know how to get there over a 100 Gig link and a 100 Mbps link both of them have the same cost and they are not different".